Landscape-level processes such as fire regimes, increasing disease prevalence and a drying climate are emerging threats affecting plant groups such as the Proteaceae. Using field derived empirical data and a population simulation model we investigated population-level impacts of canker diseases and contemporary fire regimes on the threatened shrub and granite outcrop endemic Banksia verticillata R.Br. We found the persistence of B. verticillata on granite inselbergs is strongly influenced by fire frequency and extent, as well as the prevalence of canker disease. For populations where canker is present but having a relatively lower impact none of the fire scenarios resulted in extinction over the 100-year simulation, but all scenarios resulted in population decline with the magnitude of the effect increasing with fire frequency and extent (proportion of plants killed). In contrast, higher impact canker disease scenarios resulted in rapid population declines and potential extinction. Small increases in inter-fire adult survival reduced the rate of decline in populations with relatively low canker infestation. Research is urgently needed to understand the role that a warming and drying climate in the South-west Australian Floristic Region may have on the epidemiology of canker disease and the feasibility and effectiveness of treating individuals with appropriate fungicides.

景观层面的过程，如火灾制度、疾病流行率的增加和干燥的气候，是影响 Proteaceae 等植物群的新兴威胁。使用现场获得的经验数据和种群模拟模型，我们调查了溃疡病和当代火灾制度对受威胁的灌木和花岗岩露头地方性Banksia verticillata R.Br 的种群水平影响。我们发现了B. verticillata的持久性在花岗岩内山上，火灾频率和范围以及溃疡病的流行程度受到强烈影响。对于存在溃疡病但影响相对较小的种群，在 100 年的模拟中，没有任何火灾情景导致灭绝，但所有情景都导致种群下降，其影响程度随着火灾频率和范围（植物的比例）而增加杀）。相比之下，影响更大的溃疡病情景会导致人口迅速下降和潜在的灭绝。火灾间成虫存活率的小幅增加降低了溃疡病感染率相对较低的种群的下降速度。